Sites
Books

Professional WAP Professional WAP - By Wrox press, quite an exhaustive book with lots of sample code. Written by 13 authors from various countries including two Indian authors viz. Nirmal Chidambaram and Shashikiran Guruprasad, with more than 800 pages. The Wireless Application Protocol The Wireless Application Protocol - A more concise book for WAP and mobile internet programming. Provides a good insight and information for the technology.